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82 Chapter 4
Analog Modulation
Configuring Pulse Modulation
Configuring Pulse Modulation
In this example, you will learn how to create a pulse-modulated RF carrier.
To Set the RF Output Frequency
1. Press Preset.
2. Press
Frequency > 2 > GHz.
To Set the RF Output Amplitude
Press Amplitude > 0 > dBm.
To Set the Pulse Period and Width
1. Press Pulse > Pulse Period > 100 > usec.
2. Press
Pulse > Pulse Width > 24 > usec.
The signal generator is now configured to output a 0 dBm, pulse-modulated carrier at 2 GHz with a
100-microsecond pulse period and 24-microsecond pulse width. The pulse source is set to Internal Free Run.
(Notice that Internal Free Run is the default for the
Pulse Source softkey.)
To Activate Pulse Modulation
Follow these remaining steps to output the pulse-modulated signal.
1. Press
Pulse Off On to On.
2. Press
RF On/Off.
The Pulse and RF ON annunciators are now displayed. This indicates that you have enabled pulse
modulation and the signal is now being transmitted from the RF OUTPUT connector.